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| 型号： | MCP1624T-I/MC |
| 厂商： | Microchip Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC BOOST SYNC REG PWM/PFM 8DFN |
| 标准包装： | 3,300 |
| 应用： | 转换器，PIC? 微控制器 |
| 输入电压： | 0.8 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 2 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN（2x3） |
| 包装： | 带卷 (TR) |
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MCP1623/24
Low-Voltage Input Boost Regulator
for PIC ? Microcontrollers
Features:
? Up to 96% Typical Efficiency
? 425 mA Typical Peak Input Current Limit:
- I OUT > 50 mA @ 1.2V V IN , 3.3V V OUT
- I OUT > 175 mA @ 2.4V V IN , 3.3V V OUT
- I OUT > 175 mA @ 3.3V V IN, 5.0V V OUT
? Low Start-up Voltage: 0.65V, typical 3.3V V OUT
@ 1 mA
? Low Operating Input Voltage: 0.35V, typical
3.3V OUT @ 1 mA
? Adjustable Output Voltage Range: 2.0V to 5.5V
? Maximum Input Voltage ≤ V OUT < 5.5V
? Automatic PFM/PWM Operation (MCP1624)
? PWM-only Operation (MCP1623)
? 500 kHz PWM Frequency
? Low Device Quiescent Current: 19 μA, typical
PFM mode
? Internal Synchronous Rectifier
? Internal Compensation
? Inrush Current Limiting and Internal Soft-Start
? True Load Disconnect
? Shutdown Current (All States): < 1 μA
? Low Noise, Anti-Ringing Control
? Overtemperature Protection
? SOT-23-6 and 2 x 3 DFN-8 Package
General Description:
The MCP1623/24 is a compact, high-efficiency, fixed
frequency, synchronous step-up DC-DC converter. It
provides an easy-to-use power supply solution for PIC
microcontroller applications powered by either
one-cell, two-cell, or three-cell alkaline, NiCd, NiMH,
one-cell Li-Ion or Li-Polymer batteries.
Low-voltage technology allows the regulator to start-up
without high inrush current or output voltage overshoot
from a low 0.65V input. High efficiency is accomplished
by integrating the low resistance N-Channel Boost
switch and synchronous P-Channel switch. All
compensation and protection circuitry are integrated to
minimize external components. For standby
applications, the MCP1624 operates and consumes
only 19 μA while operating at no load. The MCP1623
device option is available that operates in PWM-only
mode.
A “true” Load Disconnect mode provides input to output
isolation while disabled (EN = GND) by removing the
normal boost regulator diode path from input to output.
This mode consumes less than 1 μA of input current.
Output voltage is set by a small external resistor
divider.
Packaging
MCP1623/24
MCP1623/24
Applications:
6-Lead SOT-23
2x3 DFN*
? One, Two and Three Cell Alkaline and NiMH/NiCd
Low-Power PIC ? Microcontroller Applications
SW 1
6 V IN
V FB 1
8 V IN
GND 2
EN 3
5 V OUT
4 V FB
S GND 2
P GND 3
EN 4
EP
9
7 V OUTS
6 V OUTP
5 SW
? 2011 Microchip Technology Inc.
DS41420C-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP16251 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low Quiescent Current, PFM/PWM Synchronous Boost Regulator |
| MCP16251T-I/CH | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MCP16251T-I/MNY | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MCP16252 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low Quiescent Current, PFM/PWM Synchronous Boost Regulator |
| MCP16252T-I/CH | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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